Hello, Since the inclusion of a GEM throttling commit [1] to the 2.6.31 release candidate I started to have serious issues using 3D acceleration.
3D Applications which are rather simple tend to render themselves in bursts (i.e. shows a dozen of frames and then freezes for a split of a second; repeat). I've filed a bug at kernel bug [2], but now I'm starting to think it might be (also) xserver issue. Recently I noticed a detail which led me here. Stepmania [3] is one of those suffering applications. The interesting part I noticed is that it can render perfectly fine when the game window does not have keyboard focus. If it regains the focus/input - it starts to render in those bursts again. Quake3-demo and glxgears on the other hand render in bursts regardless of the input/focus. It doesn't seem to be WM related too. I thought it might an unintentional sync to the swap or something, but the relation to keyboard focus makes it kind of.. illogical ? Are you guys aware of this issue ? Any other thoughts ? Regards, Michał Kazior. [1]: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b962442e46a9340bdbc6711982c59ff0cc2b5afb [2]: http://bugzilla.kernel.org/show_bug.cgi?id=13713 [3]: http://www.stepmania.com/ _______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
